N2 · Structured courses

Nai Koto Ni Wa: Unless

"Unless A happens first, B cannot happen." This lesson combines form, context, examples, common mistakes, and practice so you can use the pattern in real communication.

12 minNihongo Hub Editorial TeamPublished 2026-06-06Updated 2026-06-06

Learning objectives

  • Lesson goals: "Unless A happens first, B cannot happen."
  • Form and connection: [Verb nai-form] ないことには
  • Nuance in real use: ないことには sets an unskippable prerequisite—you must do A before B.

Form and connection

[Verb nai-form] ないことには

Core Explanation

"Unless A happens first, B cannot happen."

Cultural Note

ないことには sets an unskippable prerequisite—you must do A before B.

Practical examples

I can't judge without seeing it myself.
We can't start the meeting unless the materials are ready.

Common pitfalls

Build the base form before adding the pattern

Complete the required conjugation first. Do not keep polite and plain endings at the same time.

Match politeness to the situation

The examples are reliable starting points; relationships and context can still change the most natural wording.

Practice and answers

1. Write the connection formula for this lesson.
Show answer[Verb nai-form] ないことには
2. Explain the meaning of the first example.
Show answerI can't judge without seeing it myself.
3. Rewrite the final example using this lesson pattern.
Show answer資料しりょうがそろわないことには会議かいぎを始はじめられない。 ([Verb nai-form] ないことには)

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